Answer:
1) the US feared a Communist takeover in Vietnam and further spreading to the adjacent nations. 2) The US pulled out from Vietnam, back home
Explanation:
As the Cold war dynamic suggested, the North Vietnam was backed up by Communist forces who advanced into the South. The Americans then made a intervention to try to expel the forces and supported the South, however this time the problems that emerged in the region controlled by the Vietcongs demonstrated the geopolitical failure of the American strategy. As a stalemate took place, the internal situation of the US turned the Vietnam war costly, and the people inside and outside the US was protesting against the American intervention. Richard Nixon in 1969 then realized as a new elected president he had to bring the veterans back home. And eventually the Vietnam War enden turning North Vietnam to be the winner united under Communist rule 1975.
